For which of the following changes is ASsys negative? a. sugar dissolving in water b. water warming from 10 °C to 20 °C c. bubbles of CO₂ forming and escaping from a carbonated drink d. liquid water freezing to ice e. none of these

Q: Refer to the following phase diagram (not to scale!) for oxygen: 49.8 1.00 P atm 0.00150- 54.4 54.8…

A: Phase Diagram :It is the graphical representation of states of substances under different…

Q: The boiling point of O2 is higher than N₂ due to a)dipole-dipole forces. b)dipole-dipole forces.…

A: Given two gases O2  and N2 and intermolecular forces.Intermolecular forces determine how two…

Q: The strongest intermolecular forces present in a sample of pure Br2 are Select one: a. London…

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Q: In which series are the elements listed in order of increasing electronegativity? L C

A: If the atoms of a covalent bond formed by the sharing of the electrons are different then the…

Q: Two gases X and Y are found in the atmosphere in only trace amounts because they decompose quickly.…

A: Given:Half-life of X = 105 minHalf-life of Y = 1.25 hrThe partial pressure of X is 5 times greater…

Q: The average adult heart pumps about 84. mL/s of blood at 72 beats per minute. Suppose you need to…

A: According to given data heart pumps  blood at the rate of 84ml/s at 72 beats per minute.

Q: Which of the following describe(s) the following reaction? Choose all that apply. 1 235U + on 92 94…

A: Answer:A reaction in which nucleus of an atom changes by releasing of a subatomic particle then such…

Q: The binding constants between the two amines shown and porphyrin monomer and dimer were measured in…

A: Stability of the chelating agent or compound is determined by the entropy, higher the chelation…

Q: A chemist measures the enthalpy change AH during the following reaction: P4(s) + 6 Cl₂(g) →4 PC13(g)…

A: P4(s) + 6Cl2(g) ----> 4PCl3(g)    ∆H = -1148. kJCalculating the enthalpy change ∆H during the…

Q: What is the volume in L of 216.8 g of oxygen at 725 torr and 37° C

A: volume=V=?mass=m=216.8gtemperature=T=37 °C=310Kpressure=P=725 torrmolar mass of oxygen…

Q: Chemical Valence Formula Electrons 16. H₂O 17. PF3 18. CO 19. H: CH₁ ܘ Total: P: F: Total: C: 0:…

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Q: Solid barium fluoride has the same kind of crystal structure as CaF₂ which is pictured below: If the…

A: Solid barium fluoride has the same kind of crystal structure as CaF2Edge length of the unit cell =…

Q: Which one of the following complexes CANNOT exhibit geometrical isomerism? Check all the apply. OA.…

A: This question belong to coordination compounds of inorganic chemistry that is isomerism.Geometrical…

Q: Consider the reaction and the data below: A+B⇒C Reaction 1 2 3 The value of k is closest to: [A](M)…

A: For a general reaction,the rate law can be given aswhere 'k' is the rate constant, 'x' and 'y' are…

Q: 16. Explain the reaction shown below. Include the following pieces in your explanation. a. Identify…

A: The question is based on the concept of organic synthesis.We need to synthesize the product using…

Q: (a) (b) Predict the major product for each of the following reactions: H ? N Br 1) Excess Mel 2)…

A:

Q: 1. On each line below, write the generic functional group being highlighted by each box. Do not name…

A: Check the name for functional group and write down the name in front of the compound.

Q: Ammonium phosphate ((NH₂),PO₁) is an important ingredient in many solid fertilizers. It can be made…

A: Phosphoric acid reacts with ammonia to form ammonium phosphate. The equation for the balanced…

Q: Stereochemistry Assign each of the following alkenes as E or Z or unassignable. Also assign each of…

A: Geometrical isomerism is a stereoisomers is formed when atoms are arranged in space .

Q: Give the major product formed in the following reaction. CH₂ CH CH₂ D e 1. OH 2.OH. heat

A: Reaction of cyclohexanone with vinyl methyl ketone in the presence of base,

Q: Please complete the following table. For each of your three acceptable trials (not the cursory one),…

A: Answer:Reaction between KHP and NaOH is shown below:According to reaction stoichiometry, 1 mole of…

Q: Consider the following balanced redox reaction, 2Ag+ (aq)+ Mn(s)⟶2Ag(s) + Mn2+(aq) Which of the…

A: This problem is based on Nernst equation. This is a subtopic of Electrochemistry. Here a redox…

Q: An organic chemist measures the temperature I of a solution in a reaction flask. Here is the result.…

A: Given,Temperature ( T ) = 67. 0C

Q: The oxidation state of the metal atom is metal atom is in the complex: and the coordination number…

A: Given complex: To determine:1) Oxidation state of metal atom2) Cordination number of metal atom

Q: What is the molar mass of a gas whose density is 1.96 g/l at 0. ° C and 1.0 ATM

A: This is the question which is highlights the relationship between density of gas and it's molar mass…

Q: What is the major neutral organic product for the following sequence? OH 1. POCIĄ pyridine 2. Os04…

A: An alcohol reacts with phosphorus oxychloride to give an alkene. This dehydration reaction occurs…

Q: What is the correct name of the following amino acid?

A: Amino acids are biomolecules that have both amine (-NH2) and carboxylic acid (-COOH) in same…

Q: Balance the following redox reaction if it occurs in acidic solution. What are the coefficients in…

A:

Q: Select the weaker acid from each of the following pairs I. HI or HBr II. H3ASO3 or H₂SO3 III. HNO3…

A: We have to select the weaker acid form the given pair of acids. Acid is a substance that produces H+…

Q: The reaction below is at equilibrium. Explain why the reaction is at equilibrium. Your answer must…

A: Given that the reaction is

Q: After a substance acting as a strong base reacts, what remains of the base? Select one: a. a weaker…

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Q: What would happen if 1.00 mmole of lactic acid (pKa 3.86) was added to a sample containing 6.50…

A: The pH of conjugate acid base pair or acidic buffer is calculated using following equation;

Q: 5. Multi-step synthesis: Carry out only one of the following two syntheses below using the starting…

A: We have to convert the given reactants to products.

Q: From a wild plant, a natural flavouring ingredient was isolated and utilised to sweeten ice cream…

A: The molecular formula is defined as an expression which is used to define the number of atoms of…

Q: a) Provide as specific a name as you can for the molecule   b) Name the fatty acid that is part of…

A: If we look at the molecule, we can see that the backbone consists of a sphingosine molecule.When a…

Q: What is the difference between a coordination complex and a ligand? A ligand is a type of molecule…

A: In the given question we have to find out the difference between coordination complex and a ligand.…

Q: You wish to prepare 194 grams of 8.60 % KNO3 solution. You will need grams of potassium nitrate and…

A: The mass of solute in gram present in 100 g solution is known as the mass percent concentration of a…

Q: Draw the mechanism for the reaction please. xs CH3OH H3O+ H3CO OCH 3 H₂O

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Q: The preparations of two aqueous solutions are described in the table below. For each solution, write…

A: GivenMoles of HCl = 0.18 molVolume of NH3 solution = 1.0 L = Vmolarity of NH3 solution = 1.1 M =…

Q: What is the correct common name for the compound shown here?

A: Determine the longest carbon chain with an amine functional group.To indicate the existence of an…

Q: N- am II. NH₂ ia pyridine III. 1. LIAIH4 2. H₂O IV. NH₂ V.

A: Organic reactions are those in which organic reactant react to form organic products. In the given…

Q: Which of the following would be a correct depiction of a hydrogen bond? R₂ A B OA OB OC OD OB&C OA&D…

A: If hydrogen attached to electronegative atom then it becomes electron deficient and it attracts…

Q: 13. How do humans use subatomic particles to the benefit of society? Provide an example and explain…

A: Sub-atomic particles are self contained units of matter that are fundamental constituents of all…

Q: There are three sets of sketches below, showing the same pure molecular compound (sulfur dioxide,…

A: Given Molecule: SO2Melting point of SO2: -72 oCBoiling point of SO2: -10 oCGiven temperature…

Q: The drawing below shows a mixture of molecules: carbon nitrogen oxygen key O hydrogen sulfur…

A: Given :Golden ball = SulphurRed ball = oxygenBalanced reaction :

Q: 3. Which of the following options places the models of the atom in the correct chronological order?…

A: The electron configuration of an atom or ion can be deduced using the three rules below. Students…

Q: A) CH3CH₂CH₂CH₂CH₂CH₂NH₂ C) NH₂ CH3CH₂CCH₂CH3 CH₂CH3 NH₂ B) CH3CCH₂CH₂CH3 H D) NH₂ CH3CCH(CH₂CH3)2 Н

A: C-13 NMR

Q: Balance the following redox reaction if it occurs in acidic solution. What are the coefficients in…

A:

Q: Fill-in the missing reagents and products for the synthesis of HH Br NaCN SN2 A B N 1 H H

A: Note: As per the guidelines, solution of first question has been made. For the expert solution of…

Q: What is the name of the complex [Ni(NH3)2 (H2O)4]Cl2 A. tetraaquadiamminenickel(II) chloride B.…

A: To solve this question first we need to know the recommended rules for naming of a coordination…